| Code | Diameter | Thickness | Surface Quality | Flatness | Coating | Unit Price | Delivery | Cart |
|---|---|---|---|---|---|---|---|---|
| 123-001 | 12.7mm | 3.0mm | 20/10 S/D | λ/10 | Enhanced Al | $17.0 | 1 week | |
| 123-002 | 12.7mm | 3.0mm | 40/20 S/D | λ/4 | Enhanced Al | $14.0 | 1 week | |
| 123-003 | 12.7mm | 3.0mm | 20/10 S/D | λ/10 | Protected Ag | $17.0 | 1 week | |
| 123-004 | 12.7mm | 3.0mm | 40/20 S/D | λ/4 | Protected Ag | $14.0 | 1 week | |
| 123-005 | 12.7mm | 3.0mm | 20/10 S/D | λ/10 | Protected Au | $23.0 | 1 week | |
| 123-006 | 12.7mm | 3.0mm | 40/20 S/D | λ/4 | Protected Au | $18.0 | 1 week | |
| 123-007 | 25.4mm | 6.0mm | 20/10 S/D | λ/10 | Enhanced Al | $25.0 | 1 week | |
| 123-008 | 25.4mm | 6.0mm | 40/20 S/D | λ/4 | Enhanced Al | $22.0 | 1 week | |
| 123-009 | 25.4mm | 6.0mm | 20/10 S/D | λ/10 | Protected Ag | $32.0 | 1 week | |
| 123-010 | 25.4mm | 6.0mm | 40/20 S/D | λ/4 | Protected Ag | $24.0 | 1 week | |
| 123-011 | 25.4mm | 6.0mm | 20/10 S/D | λ/10 | Protected Au | $38.0 | 1 week | |
| 123-012 | 25.4mm | 6.0mm | 40/20 S/D | λ/4 | Protected Au | $30.0 | 1 week | |
| 123-013 | 50.8mm | 12.0mm | 20/10 S/D | λ/10 | Enhanced Al | $64.0 | 1 week | |
| 123-014 | 50.8mm | 12.0mm | 40/20 S/D | λ/4 | Enhanced Al | $48.0 | 1 week | |
| 123-015 | 50.8mm | 12.0mm | 20/10 S/D | λ/10 | Protected Ag | $64.0 | 1 week | |
| 123-016 | 50.8mm | 12.0mm | 40/20 S/D | λ/4 | Protected Ag | $48.0 | 1 week | |
| 123-017 | 50.8mm | 12.0mm | 20/10 S/D | λ/10 | Protected Au | $94.0 | 1 week | |
| 123-018 | 50.8mm | 12.0mm | 40/20 S/D | λ/4 | Protected Au | $75.0 | 1 week |
Shalom EO’s N-BK7 Metallic Mirrors consist of N-BK7 substrates and Enhanced Al/Protected Ag /Protected Au metallic coatings. Both stocked and custom versions are available. Bare metal mirrors are also accessible.
N-BK7 is one of the most common materials for optical components available in large amounts, featuring low bubble/inclusion content, and decent mechanical/chemical endurance. Compared with UV-fused silica mirrors, N-BK7 mirrors are less expensive.
Metallic-coated mirrors feature a wide reflective spectral range, low cost, and are non-sensitive to the incidence angle and polarization state. The working principle is that the free electrons of metal oscillate due to the electric field of the light wave. The amount of reflection depends on the surface quality, metal type, and the angle of incidence. Compared with dielectric-coated mirrors, however, metal mirrors have more moderate reflectance and laser damage threshold, therefore metallic-coated mirrors are the economical option for applications requiring a wide reflection wavelength range and less strict reflectance standards.
Three metal materials are utilized to coat the mirror substrates: Aluminum (Al) is the most prevalent metal for manufacturing reflection coating, it features high reflectance from UV to NIR spectrum, and is price-competitive. Silver (Ag) ’s high-reflection zone is located at visible-to-NIR, and its reflection rate is higher than aluminum, however, silver under exposure to air suffers from oxidation, which leads to blackening and degradation in performance and strength. Gold (Au) exhibits high reflectance from NIR to Far Infrared regions, with its cut-off wavelength extending to 20μm. Gold coatings and is more consistent than the other two metals. The drawback is the higher cost and the soft characteristic. Metal coatings are vulnerable and not easy to handle, as bare metals have the tendency to tarnish and be scratched, therefore to improve the durability of the metallic mirrors and promote the reflectivities of the metallic coatings, Shalom EO also offers enhanced or protected metal coatings, including enhanced aluminum /protected silver/protected gold metallic coatings.
Shalom EO is a leading supplier of optical mirrors. With over ten years of experience, we have developed our high-tech production line and in-house ISO9001-compliant inspection labs to ensure the quality of our products before dispatch. Apart from industrial-grade mirrors, we also offer super-polished mirror substrates.
